Class IV versus class IIIb laser therapy on median sternotomy incision healing after coronary artery bypass graft: A Randomize Control Trail

Abstract

The aim of this study was to investigate the effects of class IV high-level laser therapy (HLLT) versus class IIIb low level laser therapy (LLLT) on sternotomy healing following coronary artery bypass grafting (CABG) surgery. Forty- five patients male patients who had CABG surgery in the age range of 45–65 years were divided randomly into three equal groups (n = 15). The group HLLT laser received HLLT plus traditional wound management, while the group LLLT laser received LLLT plus traditional wound management. The control group only received a traditional wound management in form of saline irrigation, dressing, and topical bivatracin spray according to hospital protocol. All groups were offered 10 sessions over 4 weeks. Wound dehiscence and pain score were evaluated pre- and post-treatment, Statistical significance was set at P < 0.05. There was a significant decrease among the laser group (A and B) in PUSH score and pain test, while control groups showed a non-significant decrease. HLLT and LLLT were found to be the most effective methods for sternotomy healing post-CABG surgery, with HLLT offering superior performance in the case of the high deep penetration and significance less time needed to deliver the same joules/ cm compared to LLLT used for the wound site.